From: havoc <havoc@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Thu, 16 Sep 2010 08:45:34 +0000 (+0000)
Subject: on D3D9 renderer do not allow textures to be uploaded with a size smaller than 2xN... 
X-Git-Tag: xonotic-v0.1.0preview~230^2~21
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=ff37132b0137d1e241c185a73e18d6fbc3c3cdb3;p=xonotic%2Fdarkplaces.git

on D3D9 renderer do not allow textures to be uploaded with a size smaller than 2xN or Nx2 because the REF rasterizer refuses these (which makes PIX debugging hard)

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@10463 d7cf8633-e32d-0410-b094-e92efae38249
---

diff --git a/gl_textures.c b/gl_textures.c
index c7ec81f9..0d8c0feb 100644
--- a/gl_textures.c
+++ b/gl_textures.c
@@ -493,6 +493,25 @@ static void GL_Texture_CalcImageSize(int texturetype, int flags, int miplevel, i
 {
 	int picmip = 0, maxsize = 0, width2 = 1, height2 = 1, depth2 = 1, miplevels = 1;
 
+	switch(vid.renderpath)
+	{
+	case RENDERPATH_GL11:
+	case RENDERPATH_GL13:
+	case RENDERPATH_GL20:
+	case RENDERPATH_CGGL:
+	case RENDERPATH_D3D10:
+	case RENDERPATH_D3D11:
+		break;
+	case RENDERPATH_D3D9:
+		// for some reason the REF rasterizer (and hence the PIX debugger) does not like small textures...
+		if (indepth == 1)
+		{
+			width2 = max(width2, 2);
+			height2 = max(height2, 2);
+		}
+		break;
+	}
+
 	switch (texturetype)
 	{
 	default: